//#include <windows.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>

//<<<<<<<<<<<<<<<<<<< axis >>>>>>>>>>>>>>
void axis(double length)
{ // draw a z-axis, with cone at end
    glPushMatrix();
    glBegin(GL_LINES);
    glVertex3d(0, 0, 0); glVertex3d(0,0,length); // along the z-axis
    glEnd();
    glTranslated(0, 0,length -0.2);
    glutWireCone(0.04, 0.2, 12, 9);
    glPopMatrix();
}

//<<<<<<<<<<<<<<<<<<<<<<<<<<<<< displayWire >>>>>>>>>>>>>>>>>>>>>>
void displayWire(void)
{
    glMatrixMode(GL_PROJECTION); // set the view volume shape
    glLoadIdentity();
    glOrtho(-2.0*64/48.0, 2.0*64/48.0, -2.0, 2.0, 0.1, 100);
    glMatrixMode(GL_MODELVIEW); // position and aim the camera
    glLoadIdentity();
    gluLookAt(2.0, 2.0, 2.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
    glClear(GL_COLOR_BUFFER_BIT); // clear the screen
    glColor3d(0,0,0); // draw black lines
    axis(0.5); // x-axis
    glPushMatrix();
    glRotated(90, 0,1.0, 0);
    axis(0.5); // y-axis
    glRotated(-90.0, 1, 0, 0);
    axis(0.5); // z-axis
    glPopMatrix();
    glPushMatrix();
    glTranslated(0.5, 0.5, 0.5); // big cube at (0.5, 0.5, 0.5)
    glutWireCube(1.0);
    glPopMatrix();
    glPushMatrix();
    glTranslated(1.0,1.0,0); // sphere at (1,1,0)
    glutWireSphere(0.25, 10, 8);
    glPopMatrix();
    glPushMatrix();
    glTranslated(1.0,0,1.0); // cone at (1,0,1)
    glutWireCone(0.2, 0.5, 10, 8);
    glPopMatrix();
    glPushMatrix();
    glTranslated(1,1,1);
    glutWireTeapot(0.2); // teapot at (1,1,1)
    glPopMatrix();
    glPushMatrix();
    glTranslated(0, 1.0 ,0); // torus at (0,1,0)
    glRotated(90.0, 1,0,0);
    glutWireTorus(0.1, 0.3, 10,10);
    glPopMatrix();
    glPushMatrix();
    glTranslated(1.0, 0 ,0); // dodecahedron at (1,0,0)
    glScaled(0.15, 0.15, 0.15);
    glutWireDodecahedron();
    glPopMatrix();
    glPushMatrix();
    glTranslated(0, 1.0 ,1.0); // small cube at (0,1,1)
    glutWireCube(0.25);
    glPopMatrix();
    glPushMatrix();
    glTranslated(0, 0 ,1.0); // cylinder at (0,0,1)
    GLUquadricObj * qobj;
    qobj = gluNewQuadric();
    gluQuadricDrawStyle(qobj,GLU_LINE);
    gluCylinder(qobj, 0.2, 0.2, 0.4, 8,8);
    glPopMatrix();
    glFlush();
}

//<<<<<<<<<<<<<<<<<<<<<< main >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
int main(int argc, char **argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB );
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100, 100);
    glutCreateWindow("Transformation Test - wireframes");
    glutDisplayFunc(displayWire);
    glClearColor(1.0f, 1.0f, 1.0f,0.0f); // background is white
    glViewport(0, 0, 640, 480);
    glutMainLoop();
}
